National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2012-5533 Detail

Current Description

The http_request_split_value function in request.c in lighttpd before 1.4.32 allows remote attackers to cause a denial of service (infinite loop) via a request with a header containing an empty token, as demonstrated using the "Connection: TE,,Keep-Alive" header.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

Evaluator Impact

Per: http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt " Affected versions ------------------- Only 1.4.31; on the other hand versions before 1.4.31 include the "invalid read" bug."

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt Vendor Advisory
http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.31_fix_connection_header_dos.patch Patch
http://lists.opensuse.org/opensuse-updates/2012-11/msg00044.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00051.html
http://marc.info/?l=bugtraq&m=141576815022399&w=2
http://packetstormsecurity.org/files/118282/Simple-Lighttpd-1.4.31-Denial-Of-Service.html
http://www.exploit-db.com/exploits/22902 Exploit
http://www.mandriva.com/security/advisories?name=MDVSA-2013:100
http://www.openwall.com/lists/oss-security/2012/11/21/1
http://www.securityfocus.com/bid/56619 Exploit
http://www.securitytracker.com/id?1027802
https://exchange.xforce.ibmcloud.com/vulnerabilities/80213
https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0345

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:lighttpd:lighttpd:1.4.31:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:lighttpd:lighttpd:1.4.32:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2012-5533
NVD Published Date:
11/24/2012
NVD Last Modified:
08/28/2017